JPS604346A - Pattern generator - Google Patents

Abstract

PURPOSE:To convert optional address data in a serial code string by providing a setting means which sets a desired conversion data address in the serial code string, a conversion data setting means, and a means which switches data to be converted and conversion data. CONSTITUTION:Transmission data set to a data setting part 21 is written in a storage part 23 by a write/read setting part 26 and the control of a write/read control part 25, and this data is read out and is transmitted as a CDT in accordance with the frame of a specific address of the CDT. In case of switching of data, the address of a frame to be switched and information indicating switching are set to an address setting and data switching setting part 29. When address coincidence is detected by an address coincidence detecting circuit 30, data in this address is converted in a data switching part and is transmitted.

Description

Detailed Description of the Invention +a+ Technical Field of the Invention The present invention relates to a pattern generator for generating a coupled serial code string of a digital telemeter device. This article relates to a pattern zigzag rake that can convert data at the 1/space position.

(I) 1. Prior art and problems Functional testing of the receiving section of a digital telemeter device, and code error test (parity test) of the receiving section.

It may be necessary to test the pattern of the synchronization word and dynamically vary the serial code string to see if it is compatible with this. To test this functionality, there are 8 times when we use a pattern generator that generates a serial code sequence to occasionally trace the epicenter of the data. However, conventional pattern generators write data in RAM,
The data was output one after another, converted into a serial code, and applied to the receiving section of the telemeter device. For this reason, change the data to R
It is necessary to change the data tV within. Each time this rewriting is performed, the operation of the pattern generator must be stopped, which reduces the efficiency of the experiment. Conventional pattern generators have the drawbacks that reduce the efficiency of functional testing as described above.

[Cl OBJECTS OF THE INVENTION In view of the above-mentioned drawbacks ζ, an object of the invention is to provide a pattern generator that can convert data at any address in a serial code string while transmitting a continuous serial code string.

tdl Structure of the Invention In order to achieve the above object, the present invention provides a serial code
The present invention is characterized in that it includes means for setting the address of data to be converted, means for setting the converted data, and means for switching between the converted data and the converted data when the address is reached.

(El Embodiment of the Invention An embodiment of the present invention will be described below according to the drawings.) Figure 1 is a configuration diagram of an example of a serial code string in a cyclic case handled by a telemeter device (~ is a cycle configuration, (E31 0 indicates a frame configuration, and a surface indicates a word configuration. The second section is a block diagram showing the circuit configuration of a pattern generator according to an embodiment of the present invention.

■1 in 1 figure is the first frame, 2 is the second frame, 3.5
is a synchronization word, 4, 6 is a data word IJ17 is a food address area, 8 is a data area, 9.12 is a parity bit area, 10 is an inverted word address area where each bit of word address area 7 is inverted, 11 is a data area 21 in Figure 2 shows the inverted data area where the valley bit of 8 is inverted.
is a data setting section, 22 is a parallel-to-serial conversion section, 23 is a storage section,
24ii data switching unit, 25 a write Narita'i''O control unit, 26 a write output/collection unit, 27 a clock generation and bit counting unit, 28 an address counting unit, 29 address setting and data The switching setting section 30 indicates an address matching circuit.

The serial code tower handled by the telemeter device is generally as shown in FIG. This cyclically sends out a serial code string, and one cycle consists of a first frame 1 and a second frame 2, as shown in FIG. 1 (5). The first frame 1 is composed of 32 words, and as shown in the upper part of Figure 1, the word number 0 is the synchronization word 3, and the words 1 to 31 are the data words 4. Frame 2 also consists of 32 words, and as shown in the lower part of Figure 1, the 32nd word is the sync word 5, and the 33rd to
Word number 66 is data word 6. In addition, synchronization words 3 and 5 are composed of 44 pictographs, and data word 4
.
The bit is data area 8, the next bit is parity bit area 9, the above 22 bits and bits constitute the first bit data, and the next 6 bits are the inverted valley bits of food address area 7. At word address 10, the next 15 bits are inverted data area 1, which is the inversion of the bits in data area 8.
1, the next 1 bit is the parity bit area 12,
The above 22 bits constitute the inverted continuous transmission data, and the initial speed data and the inverted slow speed data are used in an inverted two-delay collation system.

Next, the functions of each part in FIG. 2 will be explained. ,'ipz data setting section 21 is composed of 44 switches corresponding to bits, and is for setting data to the storage section 23 and conversion data.

The parallel/serial converter 22 writes the 44-bit parallel data into the storage unit 23 and converts the converted data into serial data.

The data memory section 23 is a 2816-bit 6-bit memory section having four memory cells of 1 bit x 704 words, and reading, writing, and writing are performed for each bit.

When the data switching section 24 receives the data honor code from the address matching circuit 30, the data switching section 24 switches and outputs the data from the storage section 23 to the converted data from the parallel/serial conversion section 22.

The end-of-line start control section 25 outputs a d output or write control signal to the storage section 23 and also outputs a clock switching signal to the clock section of the cross/y error generation and bit counting section 27 .

The continuous write setting unit 26 sets the continuous write control unit 25 for writing and reading.

The error generation and bit set number section 27 generates a clock corresponding to the transmission speed and counts 44 bits per minute. A lock is supplied to the address counting section 28 as necessary. Note that the clock speed can also be changed by the writing/reading speed K''c.

The address counting section 28 is a clock generation and bit counting section 2.
7, the address counter clock is counted to count the number of addresses in the b4 word, and necessary address data is supplied to the storage unit 23 and the address matching circuit 30.

The address setting and data switching setting section 29 sets an address in word units (0 to 63) for the address section 30, and also performs data switching setting when converting direction data.

The address matching circuit 30 receives the address setting signal from the address setting and data switching setting section 29 and the address counting section 2.
If a match with the address data from 8 is detected,
An address matching signal is sent to the write/read control section 25, and if an address setting signal and a data switching signal are sent from the address setting and data switching setting section 29, a match with the address from the address counting section 28 is detected. , at this time, sends a data switching signal to the data switching section 24.

Next, the data processing operation will be explained.

The data setting section 21 sets 44 bits of data for one word required, and the address setting and data switching setting section 29 sets the word-by-word address on the first frame 1 or second frame 2 in FIG. Also, write/read setting section 26
When writing is set in , a clock switching signal is sent from the write/read control section 25 to the clock generation and bit it' setting section 27, and the clock speed is switched to high speed so that the bit counting section and address counting section 28 operate at high speed. performs counting, and supplies address data to the address matching circuit 30 and the storage section 23ζ. When an address match is obtained in the address match circuit 30, a match signal is outputted to the write/read control section 25, and a write signal is outputted from the write/read control section 25 to the storage section 23. The address match signal maintains a match state while counting 44 bits for one word, and during that time, the data set in the data setting section 21 is converted into serial data by the serial conversion section 22. It is written into the storage unit 23. When the address match signals do not match, the write signal is canceled and writing ends. The above steps are performed one word at a time.

Next, the day and evening transmission operations will be explained. When the write/read setting section 26 is set to start, the write/read control section 25 outputs a clock generation and cutting clock switching signal to the bit trf laying section 7, and the clock speed is switched to a speed that matches the transmission speed. . Matakami Memory Club 3! On the other hand, successive signals are output, and the contents stored in the storage section 23 are sequentially outputted from the black/red occurrence and bit counting section 27 and the address data and the address data from the address stitch number section 28, and the data switching section 2
4 is output.

When data switching and an address are set from the address setting and data switching setting section 29 to the address matching circuit 30, the address counting section 28 in the address-* circuit 30
The data switching unit 24
A data switching signal is output to. On the other hand, when conversion data is set in the data setting section 21, this conversion data is serially converted in the parallel-to-serial conversion section 22 and sent to the data switching section 24, and the data from the storage section 23 and the data are switched by the data switching signal. Output switching conversion data.

If there is no data disconnection signal, the data stored in the storage section 23 is outputted.

In this way, data at any address position can be converted into a confession during data transmission. By this conversion operation, the storage unit 2
The stored data in No. 3 will not change and the data written at the beginning will be saved.

tfl Effects of the Invention As explained in detail above, the present invention has the effect of providing a butter diode that can convert data at any address in a serial code string while transmitting a continuous serial code string.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of an example of a serial code string in the case of symmetric used in a telemeter device, and FIG. 2 is a block diagram showing the circuit configuration of a pattern generator according to an embodiment of the present invention. In the figure, 1 is the first frame, 2 is the second frame, 3.5 is the synchronization word, 4.6 is the data word, 7 is the word address area, 8 is the data area, 9.12 is the parity bit area, and lO is the inversion. Word address area, 11 is an inverted data area, 21 is a data setting section, 22 is a parallel-to-serial converter, 23 is a storage section, 24 is a data switching section, 25 is a continuous write control section, 26 is a write/read section 27 is a clock generation and bit counting section; 28 is an address counting section; 29 is an address setting and data switching setting section; 30 is an address matching circuit. To 5 To ＼ 曵. (Lili

Claims (1)

[Claims] In a pattern generator that generates a continuous serial code string of a digital telemeter device, means for setting the address of data to be converted in the serial code string, means for setting conversion data, and conversion with the data to be converted when the address is reached. A pattern generator that has a special feature that allows you to switch between data and data.